. >>> to the campaign trail now where voters in north carolina, indiana and west virginia are getting ready for the primaries. >>> vice president joe biden weighed in on the gay marriage debate yesterday. as david lee miller tells it, biden is the highest ranking official to say he is in favor of same-sex marriage. >> who do you love? who do you love? and will you be loyal to the person you love? >> reporter: vice president gee biden appearing to signal his support for same-sex marriage. >> i am absolute lie comfortable with the fact that many marry men, women marry women and they are entitled to the same exact rights, all the civil rights, all the civil liberties. >> reporter: more than a year ago, the president who has longo possessed same-sex marriage said his position are still unfolding. >> i struggle with this. i have friends, people who work for me, who are in powerful, strong, long-lasting gay or lesbian unions. >> reporter: white house advisors note the administration has already made historic progress by allowing gays and lesbians to serve openly in the military. when asked